Personally, I really like the G1X and find the speed more then acceptable. My last camera was the Sony NEX C3, and I have had the Sony HX1 and for this reason wasn't interested in the RX100. I think Canons colours are much better then Canons, and I really prefer the pictures. I have noticed that the G1X copes with things such as metering the sky much better then Sony, and Sony camera really struggle with indoor lighting. Granted the NEX was faster for taking pictures and shot to shot time, but for me the G1X is more then fast enough, and hasn't caused me to miss any shots. Just my opinion of course.